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520061286 = 2386676881
BaseRepresentation
bin11110111111111…
…000000101100110
31100020120211222010
4132333320011212
52031113430121
6123334415050
715613306443
oct3677700546
91306524863
10520061286
11247619818
12126201486
138398a394
144d0d89ca
15309cc376
hex1eff8166

520061286 has 8 divisors (see below), whose sum is σ = 1040122584. Its totient is φ = 173353760.

The previous prime is 520061273. The next prime is 520061299. The reversal of 520061286 is 682160025.

It is an interprime number because it is at equal distance from previous prime (520061273) and next prime (520061299).

It is a sphenic number, since it is the product of 3 distinct primes.

520061286 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43338435 + ... + 43338446.

It is an arithmetic number, because the mean of its divisors is an integer number (130015323).

Almost surely, 2520061286 is an apocalyptic number.

520061286 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

520061286 is a wasteful number, since it uses less digits than its factorization.

520061286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86676886.

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 520061286 is about 22804.8522468355. The cubic root of 520061286 is about 804.1767420407.

The spelling of 520061286 in words is "five hundred twenty million, sixty-one thousand, two hundred eighty-six".

Divisors: 1 2 3 6 86676881 173353762 260030643 520061286